1997,
Effect of concentration and duration of acid treatment on water adsorption and titration behaviour of smectite illite and kaolin., IX th Int. Conference Chemistry for Protection of the Enviroment, Kair, Egipt 10-17.09.1997, 1997

1997,
A computer system of simultaneous data acquisition from minisensors of stress and displacement versus time in soil. Application for compaction and traction., Proc. 3rd Intern. Confer. on Soil Dynamics (ICSD-III), Tiberias, Israel, August 3-7, 1997, 1997